Need the exact replacement numbers for your engine rebuild? This 40-page Yanmar 3TNV70- STB, TB016 parts catalog pdf breaks down every component from the bare cylinder block to the complete cooling water system. You get highly detailed exploded views showing the full assembly of the fuel injection pump, gear housing, and starting motor. Open to clear diagrams that map out every internal part, including each individual gasket, O-ring, and main bearing set alongside its specific factory part number for accurate ordering. Verify you are picking up the correct 0.9 KG/CM2 radiator cap, and cross-reference your exact fuel injector nozzle holders before making a parts run. Stop wasting days waiting for the wrong components to arrive in the mail. Download this bookmarked file straight to your phone or tablet, find the precise part number you need, and get your equipment back in the dirt.
What's Inside This Yanmar 3TNV70- STB, TB016 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 5-6 | Block Assy, Cylinder, Plug, Bush, Camshaft, Main Bearing Set, Gasket |
| Gear Housing | 7-8 | Case, Gear, Cover Assy, Gear Case, Seal, Oil, Rotor, O-Ring |
| Flywheel Housing & Oil Sump | 9-10 | Housing, Flywheel, Cap, Flywheel Cover, Seal, Oil, Sump Assy, Lub. Oil |
| Cylinder Head & Bonnet | 11-12 | Head Assy, Cylinder, Valve, Intake, Exhaust, Seal, Valve Stem |
| Air Cleaner | 13-14 | Cleaner Assy, Air, Element, Valve, Unloader, Hose, Air Intake, Bracket |
| Exhaust Manifold & Silencer | 15-16 | Manifold, Exhaust, Gasket, Silencer |
| Camshaft & Driving Gear | 17-18 | Camshaft Assy, Tappet, Rod, Push, Gear Assy, Idle, Gear, Pump |
| Crankshaft & Piston | 19-20 | Crankshaft Assy, Piston Assy, Rod Assy, Connecting, Ring Set, Pin, Piston |
| Lub.Oil System | 21-22 | Dipstick, Lub. Oil, Filter Assy, Pipe Assy, Lub, Oil, Switch |
| Cooling Water System | 23-24 | Pump Assy, Water, V-Pulley, C. W. Pump, Fan, Thermostat, Radiator Assy, Cap |
| Fuel Injection Pump | 25-26 | Fie Assy, Plunger Assy, Valve Assy, Delivery, Rack, Control, Pinion |
| Governor | 27-28 | Case Assy, Shaft, Gov. Lever, Lever, Control, Spring, Fuel Control, Weight Assy |
| Fuel Injection Valve | 29-30 | Valve Assy, Injection, Holder, Nozzle, Pipe, Fuel Injection, Pipe Assy, Return |
| Fuel Line | 31-32 | Strainer Assy, Fuel, Fuel Pump, Separator, Water, Bowl, Fuel Strainer, Bend Assy |
| Starting Motor | 33-34 | Starter, P1.1, Armature Assy, Clutch Sub-Assy, Housing Assy, Switch, Emergency |
| Generator | 35-36 | Alternator, Rotor Assy, Ball Bearing, Flame Assy, Drive, Regulator Assy, Relay, Power |
| Gasket Set | 37 | Gasket, Cyl. Head, O-Ring, F. I. Pump, Seal, Valve Stem, Bonnet |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator Cap Pressure | 0.9 KG/CM2 | p. 23 |
Yanmar 3TNV70- STB, TB016 Common Problems This Manual Covers
Yanmar 3TNV70- STB compact equipment overheating under heavy load and constantly boiling over coolant p. 23
Inspect the Cooling Water System exploded view on page 23. Locate the correct part numbers for the water pump assembly and radiator cap. Verify your replacement cap matches the factory 0.9 KG/CM2 pressure specification. Cross-reference the fan and thermostat part numbers before ordering.
Manual Section: Cooling Water SystemEngine cranks but will not start or dies out shortly after ignition p. 31
Check the Fuel Line parts breakdown on page 31. Identify the correct part numbers for the fuel strainer assembly and water separator bowl. Order exactly 1 replacement strainer element and verify the O-ring seals match the exploded diagram before reassembly.
Manual Section: Fuel LineHeavy white smoke and rough idle on cold start with noticeable loss of engine power p. 37
Review the Gasket Set components on page 37. Find the exact part numbers for the cylinder head gasket and valve stem seals. Order 1 complete upper gasket kit and confirm it includes the correct bonnet gasket shown in the parts diagram.
Manual Section: Gasket SetExcessive crankcase blow-by and heavy oil consumption out of the exhaust during normal operation p. 19
Examine the Crankshaft & Piston diagram on page 19. Locate the proper ring set and piston assembly part numbers. Order exactly 3 complete piston ring sets for this block and verify the connecting rod bearings match your required journal diameter.
Manual Section: Crankshaft & PistonFrequently Asked Questions
How do you fix yanmar 3TNV70- STB compact equipment overheating under heavy load and constantly boiling over coolant?
Inspect the Cooling Water System exploded view on page 23. Locate the correct part numbers for the water pump assembly and radiator cap. Verify your replacement cap matches the factory 0.9 KG/CM2 pressure specification. Cross-reference the fan and thermostat part numbers before ordering.
How do you fix engine cranks but will not start or dies out shortly after ignition?
Check the Fuel Line parts breakdown on page 31. Identify the correct part numbers for the fuel strainer assembly and water separator bowl. Order exactly 1 replacement strainer element and verify the O-ring seals match the exploded diagram before reassembly.
How do you fix heavy white smoke and rough idle on cold start with noticeable loss of engine power?
Review the Gasket Set components on page 37. Find the exact part numbers for the cylinder head gasket and valve stem seals. Order 1 complete upper gasket kit and confirm it includes the correct bonnet gasket shown in the parts diagram.
How do you fix excessive crankcase blow-by and heavy oil consumption out of the exhaust during normal operation?
Examine the Crankshaft & Piston diagram on page 19. Locate the proper ring set and piston assembly part numbers. Order exactly 3 complete piston ring sets for this block and verify the connecting rod bearings match your required journal diameter.
What do I get after purchasing this Yanmar 3TNV70- STB, TB016 manual?
You get a 40-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print specific sections of this Yanmar 3TNV70- STB, TB016 Parts Catalog?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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